Revert of Add ARC++ specific fields to launch data for specific apps.

chrome/browser/apps/app_launch_for_metro_restart_win.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/apps/app_launch_for_metro_restart_win.h"
 
 #include "apps/launcher.h"
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/location.h"
@@ skipping 26 matching lines @@
       ExtensionSystem::Get(profile)->extension_service();
   if (!extension_service)
     return;
 
   const Extension* extension =
       extension_service->GetExtensionById(extension_id, false);
   if (!extension)
     return;
 
   AppRuntimeEventRouter::DispatchOnLaunchedEvent(
-      profile, extension, extensions::SOURCE_RESTART, nullptr);
+      profile, extension, extensions::SOURCE_RESTART,
+      std::unique_ptr<extensions::api::app_runtime::ActionData>());
 }
 
 }  // namespace
 
 void HandleAppLaunchForMetroRestart(Profile* profile) {
   PrefService* prefs = g_browser_process->local_state();
   if (!prefs->HasPrefPath(prefs::kAppLaunchForMetroRestartProfile))
     return;
 
   // This will be called for each profile that had a browser window open before
@@ skipping 29 matching lines @@
                    profile->GetPath().BaseName().MaybeAsASCII());
   prefs->SetString(prefs::kAppLaunchForMetroRestart, extension_id);
 }
 
 void RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterStringPref(prefs::kAppLaunchForMetroRestart, "");
   registry->RegisterStringPref(prefs::kAppLaunchForMetroRestartProfile, "");
 }
 
 }  // namespace app_metro_launch